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Half the distance from the wall to the centre of the luminaire, as the distance there is between luminaires. e.g if the distance between luminaires horizontally is 3m then the distance to the centre of the luminaire from the wall is 1.5m. If the distance between the luminaires vertically is 5m then the distance to the centre of the luminaire from the wall is 2.5m
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Hiow to find space to height ratio?
Spacing Height Ratio is defined as the ratio of the distance between adjacent luminaires (centre to centre), to their height above the working plane. If you know SHR and the height, the distance apart D is pretty straight forward. You then need to check absolute limits such as SHR (Transverse), SHR (axial) and SHR Max. You can also use the following as a quick means check: SHR(Nominal) = (1/Hm) x (Square root(Area/N)) Where Hm is mounting height, N is number of luminaires. Regards
How is a glide ratio calculated?
To calculate the glide ratio, you divide the length it was thrown, e.g. 150cm, by the height it was thrown, e.g. 50cm. So 150/50=30cm so, it would be 30:1.
Is it true that a ratio is a rate?
No. It can be but need not be. For example, you might calculate the ratio of today's temperature in Celsius and in Fahrenheit and calculate the ratio. That is not a rate.
How to get a ratio?
calculate the ratio between proton&electron
How do I calculate the distance between current location and a distant visible object if the only information available is the height of the object and the distance between 2 fingers at your eye?
The ratio of the spacing of the fingers and the distance from your eye will be the same as the ratio of the height of the object to its distance from you, so Hf/Df = Ho/Do and Do = HoDf/Hf
